In compact HVAC setups, industrial enclosures and OEM air handling systems, performance, energy efficiency and flexibility are crucial. The plug fans (also known as free-outlet centrifugal fans) from Soler & Palau (S&P) combine all these features in one robust solution.
At Rotero, we support engineers and machine builders with the right selection and integration of these fans – from advice to delivery.
What is a plug fan?
A plug fan is a radial fan with backward-curved blades, where the outlet blows freely into the room – i.e. without a scroll or spiral housing. This makes plug fans ideal for applications where air needs to be blown directly into a room, cabinet or air duct.
The compact mounting, combined with a motor directly on the impeller, ensures low-maintenance and efficient operation.
Features of the S&P Plug Fan series
Soler & Palau supplies a wide range of plug fans specifically designed for OEM applications and customised air handling systems.
Key features:
???? Direct drive The impeller is mounted directly on the motor shaft, which reduces vibration and energy loss.
???? Backward-curved blades For high efficiency and stable airflow with low noise emissions.
⚙️ Available with EC or AC motors Depending on performance requirements and controllability, S&P offers both EC (Electronically Commutated) technology and traditional AC solutions.
???? Easy to install The modular design allows for easy integration into cabinets, units and panels.
???? Fully compliant with ErP 2015 Complies with European directives for energy efficiency.
Technical specifications (example range)
| Model | Drive | Airflow (max.) | Pressure build-up | Ø Impeller | Motor options |
|---|---|---|---|---|---|
| PLUG-560-EC | EC-motor | 7.000 m³/h | 1.100 Pa | 560 mm | EC230 / EC400 V |
| PLUG-400-AC | AC-motor | 4.800 m³/h | 800 Pa | 400 mm | 230/400V, 50Hz |
| PLUG-315-ECN | EC-motor | 3.200 m³/h | 700 Pa | 315 mm | Compact EC |
Please note: exact specifications depend on the model and configuration.
More information can be found on the Soler & Palau product page.
Typical applications of plug fans
S&P plug fans are widely used in, among other things:
- Air handling units (AHUs)
- OEM climate solutions
- Industrial cooling and heating systems
- Switch cabinets / electrical enclosures with cooling
- Cleanrooms and laboratory ventilation
Their compact design and powerful performance make them ideal for customised installations and retrofit projects.
Why choose Rotero + Soler & Palau?
✔️ Technical advice from the start Our product specialists contribute to the design process and advise on the basis of air flow, pressure loss, noise standards and installation dimensions.
✔️ Wide range and customisation Rotero offers access to the complete S&P product range, including special versions on request.
✔️ Reliable delivery and support With 40 years of experience and short lines of communication with S&P, we ensure smooth delivery and technical support where necessary.
✔️ Knowledge and innovation go hand in hand We combine practical knowledge with the latest ventilation innovations – from EC technology to energy optimisation.
Looking for the right plug fan solution?
Do you have a challenge in the field of air movement, compact construction or energy-efficient ventilation? Soler & Palau plug fans offer the solution – and Rotero helps you find the optimal configuration for your application!
???? Request free technical advice ???? Or receive a quick, tailor-made quote
ROTERO – SMART eMOTION SOLVERS SINCE 1983
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